CN203219550U - Projector luminance and ambient light regulating system based on single chip microcomputer - Google Patents
Projector luminance and ambient light regulating system based on single chip microcomputer Download PDFInfo
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- CN203219550U CN203219550U CN 201320083365 CN201320083365U CN203219550U CN 203219550 U CN203219550 U CN 203219550U CN 201320083365 CN201320083365 CN 201320083365 CN 201320083365 U CN201320083365 U CN 201320083365U CN 203219550 U CN203219550 U CN 203219550U
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- chip microcomputer
- projecting apparatus
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- state relay
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Abstract
The utility model provides a projector luminance and ambient light regulating system based on a single chip microcomputer, which comprises a photosensitive sensor, the single chip microcomputer, a solid-state relay module and a projector controller, wherein the single chip microcomputer is connected with the photosensitive sensor, the solid-state relay module and the projector controller. The utility model further provides a corresponding method. The projector luminance and ambient light regulating system collects illumination in a classroom environment timely and analyzes the illumination based on a mode of combining the single chip microcomputer and the photosensitive sensor, and classroom fluorescent lamps are turned on or off by using a solid-state relay and an infrared sensor, thereby being capable of regulating the classroom bright and dark degree and the illuminance in the classroom automatically, and having wide application prospects.
Description
Technical field
The utility model relates to SCM Based control system, particularly, relates to based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting.
Background technology
Projecting apparatus is widely used in all kinds of enterprises and institutions and education, military service as a kind of important office equipment, and the large format multimedia presentation function that it provides adds much beauty to various meetings and classroom, is a kind of irreplaceable demonstration equipment! In American-European developed country, projecting apparatus is moved into average family as the amusement equipment of top grade.And being limited to domestic economic water product, projecting apparatus is also not very too high in the popularity of China.But in recent years, the general mood of electronic office day by day is in fashion in enterprises and institutions, and it is more and more indispensable that projecting apparatus also becomes.
Nowadays many sophisticated equipments enter the classroom aided education, multimedia equipment makes the teacher on class and the student learns convenient, the employed most of multimedia teaching projecting apparatus of school can't in time change brightness to adapt to the mode that teacher gives lessons at present, need turn off the light when using projecting apparatus in the classroom of light abundance to make the student to see content on the screen clearly, when needing the student to write some things, remove the light in the opening chamber midway again, so one time walk about and not only wasted a part of class period and allowed teacher feel more tired, through understanding, this situation also can influence student eyesight to a certain extent.Effectively simple more for teaching is given lessons, student's eyesight is protected, and therefore determines to improve existing projecting apparatus, makes the projecting apparatus in the classroom use more convenient, more efficient with low cost.
The utility model at subject matter have: 1. the result of use of present stage multimedia equipment (projecting apparatus) is not good, and light too bright (secretly) or picture are too fuzzy.2. the adjusting of projecting apparatus is too loaded down with trivial details, has wasted the valuable class period.Along with computer technology and single chip microcomputer technology development, single-chip microcomputer can realize measuring accurately the external environment data in good time, therefore be necessary to use single-chip microcomputer (for example mega128 single-chip microcomputer) that ambient lighting is gathered and preserved and shows, thus by Single-chip Controlling solid-state relay control classroom lamp bright.
The utility model content
At defective of the prior art, the utility model provides based on single-chip microcomputer and has gathered classroom environment illumination with the system that combines of light sensor in good time.
According to an aspect of the present utility model, provide a kind of based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting, comprise light sensor, single-chip microcomputer, solid-state relay module, projecting apparatus controller, wherein, described single-chip microcomputer connects described light sensor, solid-state relay module, projecting apparatus controller respectively.
Preferably, also comprise the PC processing module, wherein, described single-chip microcomputer connects described PC processing module.
Preferably, described single-chip microcomputer is the Mega128 single-chip microcomputer.
Preferably, also comprise lighting device and projecting apparatus, wherein, described lighting device connects the solid-state relay module, and described projecting apparatus connects the projecting apparatus controller.
Preferably, described lighting device is positioned at the top of projecting apparatus.
Preferably, described projecting apparatus controller is the projecting apparatus remote controller.
Compared with prior art, the utility model is gathered classroom environment illumination based on single-chip microcomputer with the mode that combines of light sensor in good time, and analyze, use the Basic language to edit the action of algorithm control projecting apparatus remote controller and MGR-1D4825 solid-state relay, solid-state relay utilizes infrared ray sensor to carry out switching to the classroom fluorescent lamp.The projecting apparatus remote controller then carries out suitable adjusting to the intensity of illumination in the classroom, finally reaches the problem of the bright dark degree in automatic adjusting classroom.Providing with the ATmega128 single-chip microcomputer in preference of the present utility model is core, and automatic control device solid-state relay and LCD display light dependent sensor numerical value, in analysis, compare based on light sensor among the excel and the detected data of illumination meter, set up calibration curve, simultaneously, with the data of excel survey questionnaire, sector diagram draws.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 illustrate according to the utility model provide based on the structural representation of single-chip microcomputer to the regulating system of projecting apparatus brightness and surround lighting;
Fig. 2 illustrates the schematic diagram of projecting apparatus LCD brightness value and the resistance of its corresponding photo resistance.
Among the figure:
1 is the illumination acquisition module;
2 is the solid-state relay module;
3 is the projecting apparatus controller;
4 is single-chip microcomputer;
5 is the PC processing module.
Embodiment
Below in conjunction with specific embodiment the utility model is elaborated.Following examples will help those skilled in the art further to understand the utility model, but not limit the utility model in any form.Should be pointed out that to those skilled in the art, under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement.These all belong to protection range of the present utility model.
According to the utility model provide based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting, comprise light sensor, single-chip microcomputer, solid-state relay module, projecting apparatus controller, PC processing module, lighting device, projecting apparatus as the illumination acquisition module.Wherein, the illumination acquisition module generates the bright dark numerical value corresponding with the dark degree of indoor environment light for detection of the dark degree of indoor environment light; Single-chip microcomputer is used for receiving and controlling solid-state relay module and projecting apparatus controller respectively according to described bright dark numerical value; The solid-state relay module is controlled for the break-make of illumination apparatus power circuit under the control of single-chip microcomputer; The projecting apparatus controller is for the lightness control command that sends to projecting apparatus under the control of single-chip microcomputer.
Particularly, solid-state relay preferably adopts the MGR-1D4825 solid-state relay, it is the contactless electronic beam switch with isolation features, no mechanical contact component in switching process, therefore solid-state relay is except having the function the same with electromagnetic relay, also has the logical circuit compatibility, the anti-anti-mechanical shock of shaking, the installation site is unrestricted, has good moistureproof and mildewproof Corrosion Protection, explosion-proof and prevent that the performance aspect the ozone pollution is also splendid, input power is little, and is highly sensitive, and control power is little, Electro Magnetic Compatibility is good, characteristics such as the low and operating frequency height of noise.The solid-state relay of solid-state relay special use can have short-circuit protection, and overload protection and overheat protective function just can be realized the intelligent object that the user needs with the combinational logic cure package, are directly used in the control system.Solid-state relay has been widely used in computer external interface equipment, constant temperature system, temperature adjustment, electric furnace at present and has added temperature control, Electric Machine Control, numerical controlled machinery, remote control system, industrial automation arrangement; Signal lamp, light modulation, scintillator, illumination light of stage control system; Instrument and meter, medicine equipment, photocopier, automatic washing machine; Automatic fire control, security system, and as diverter switch of the electric capacitor of grid power factor compensation etc. has a large amount of uses in, the anticorrosion occasion explosion-proof, moistureproof at need such as chemical industry, collieries in addition.
More specifically, described single-chip microcomputer is from described PC processing module download control program, and described lighting device connects the solid-state relay module, and described projecting apparatus connects the projecting apparatus controller.Described single-chip microcomputer is the Mega128 single-chip microcomputer, and described lighting device is positioned at the top of projecting apparatus, and wherein, mega128 type single-chip microcomputer is the most a single-chip microcomputer of high configuration of 8 series monolithics of atmel corp, uses extremely extensive.The utility model can adopt mega128 type core parts, and drive part is made of two 9V direct current machines.Mega128 type mainboard adopts 8 AVR microprocessors, has the system of 18K byte, interior FLASH able to programme; Have 8 tunnel 10 A/D converters, two have independently 8 bit timing devices (counter) of pre-divider and comparator function, two have pre-divider, 16 bit timing devices (counter) of comparing function and capture function, in programmable watchdog timer, electrification reset and the programmable detection of power loss of individual sheets internal oscillator are arranged.Totally 64 pins.Operating voltage is that 4.5-5.5 volt speed class is 0-16MHZ.Select the Sharp GP2D12 infrared sensor of finding range continuously for use, operating voltage 4-5.5 volt, normalized current consumption: 33-50MA, output voltage and detection range are proportional: the scientific and technological NST9-360-350 motor of Na Yingte, 14.8 volts of lithium batteries of middle ring and retaining element.
Also provide a kind of based on the control method of single-chip microcomputer to projecting apparatus brightness and surround lighting according to the utility model, comprised the steps:
Preliminary step: single-chip microcomputer is from described PC processing module download control program; The solid-state relay module is connected to lighting device, the projecting apparatus controller is connected to projecting apparatus, lighting device is arranged on the top of projecting apparatus;
Step 1: the dark degree of environment bright in the illumination acquisition module sensing chamber generates the bright dark numerical value corresponding with the dark degree of indoor environment light;
Step 2: single-chip microcomputer receives described bright dark numerical value, and wherein, described single-chip microcomputer is the Mega128 single-chip microcomputer;
Step 3: single-chip microcomputer is controlled solid-state relay module and projecting apparatus controller respectively according to described bright dark numerical value;
Step 4: the break-make of solid-state relay module illumination apparatus power circuit under the control of single-chip microcomputer is controlled, the lightness control command that the projecting apparatus controller sends to projecting apparatus under the control of single-chip microcomputer;
Step 5: judge bright dark numerical value and whether belong to the first default value interval corresponding to the ratio between the lightness numerical value of projecting apparatus lightness, if then process ends if not, is then returned described step 1 and continued to carry out.
Particularly, in an embodiment, at first the Mega128 single-chip microcomputer is opened, when spreading out of numerical value for the first time as the light sensor of illumination acquisition module, thereby the I/O mouth of single-chip microcomputer output 5V voltage changes into 12V through inverter and drives Photoelectric infrared switch work emission infrared light, the receiving terminal that is positioned at the other end is accepted infrared ray, drive the control of solid-state relay working relay output as the break-make of the 220V alternating current of lighting device power supply, thereby near the illuminating lamp the realization projecting apparatus is bright dark.And after that, light sensor is image data again, and single-chip microcomputer dims or lightens judging after receiving for the second time data.
Further, in a preference of present embodiment, as follows as the code of the control of remote controller of projecting apparatus controller:
$regfile="m128def.dat"
$crystal=16000000
$baud=38400
Config?Portc.1=Input
Config?Porte=Output
Config?Porta.1=Output
Config?Portc.0=Input
Config?Porta.2=Input
Dim?X?As?Long
Dim?Shuzhi2?As?Long
Dim?Shuzhil?As?Long
Dim?A?As?Long
Shuzhi1=8
Shuzhi2=13
X=0
Portc.0=1
Porta.1=1
Portf.0=1
Porta.2=1
Portf.2=1
Portc.1=1
Porte.3=1
Porte.2=0
Porte.5=1
Waitms?250
Porte.3=0
Waitms?100
Porte.3=1
Porte.2=1
Porte.5=0
Waitms?250
Porte.3=0
Porte.4=1
Porte.6=0
Porte.7=1
Waitms?250
Porte.4=0
Waitms?100
Porte.4=1
Porte.6=1
Porte.7=0
Waitms?375
Porte.4=0
Porta.1=0
Do
A=A+1
Loop?Until?Pinc.0=0
If?Pinc.0=0Then
Do
Porte.4=1
Porte.6=0
Porte.7=1
Waitms?250
Porte.4=0
Waitms?100
Porte.4=1
Porte.6=1
Porte.7=0
Waitms?375
X=X+1
Loop?Until?X=Shuzhi1
Porte.4=0
End?If
If?Pinc.1=0Then
Do
Porte.4=1
Porte.6=0
Porte.7=1
Waitms?250
Porte.4=0
Waitms?100
Porte.4=1
Porte.6=1
Porte.7=0
Waitms?375
X=X+1
Loop?Until?X=Shuzhi2
Porte.4=0
End?If
Portc.0=1
Do
A=A+1
Loop?Until?Pina.2=0?Or?Pinc.0=0
If?Pinc.1=0?Then
Do
Porte.4=1
Porte.6=0
Porte.7=1
Waitms?250
Porte.4=0
Waitms?100
Porte.4=1
Porte.6=1
Porte.7=0
Waitms?375
X=X+1
Loop?Until?X=Shuzhi1
Porte.4=0
Porta.2=1
Porta.1=0
End?If
Do
A=A+1
Loop?Until?Pina.2=0
If?Pina.2=0?Then
Porte.3=1
Porte.2=0
Porte.5=1
Waitms?250
Porte.3=0
Waitms?100
Porte.3=1
Porte.2=1
Porte.5=0
Waitms?250
Porte.3=0
End?If
End
More than specific embodiment of the utility model is described.It will be appreciated that the utility model is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present utility model.
Claims (6)
1. one kind based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting, it is characterized in that, comprise light sensor, single-chip microcomputer, solid-state relay module, projecting apparatus controller, wherein, described single-chip microcomputer connects described light sensor, solid-state relay module, projecting apparatus controller respectively.
2. according to claim 1ly it is characterized in that based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting also comprise the PC processing module, wherein, described single-chip microcomputer connects described PC processing module.
3. according to claim 1ly it is characterized in that based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting described single-chip microcomputer is the Mega128 single-chip microcomputer.
4. according to claim 1 based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting, it is characterized in that, also comprise lighting device and projecting apparatus, wherein, described lighting device connects the solid-state relay module, and described projecting apparatus connects the projecting apparatus controller.
5. according to claim 4ly it is characterized in that based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting described lighting device is positioned at the top of projecting apparatus.
6. according to claim 1ly it is characterized in that based on the regulating system of single-chip microcomputer to projecting apparatus brightness and surround lighting described projecting apparatus controller is the projecting apparatus remote controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083365 CN203219550U (en) | 2013-02-22 | 2013-02-22 | Projector luminance and ambient light regulating system based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083365 CN203219550U (en) | 2013-02-22 | 2013-02-22 | Projector luminance and ambient light regulating system based on single chip microcomputer |
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| Publication Number | Publication Date |
|---|---|
| CN203219550U true CN203219550U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083365 Expired - Fee Related CN203219550U (en) | 2013-02-22 | 2013-02-22 | Projector luminance and ambient light regulating system based on single chip microcomputer |
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| Country | Link |
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| CN (1) | CN203219550U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243881A (en) * | 2014-09-08 | 2014-12-24 | 陆俊 | Projection control method and system of projector |
| US9143720B2 (en) | 2013-10-31 | 2015-09-22 | Htc Corporation | Handheld electronic device and image projection method of the same |
| CN105159022A (en) * | 2015-09-24 | 2015-12-16 | 清华大学 | Indoor automatic dimming system matched with action of projector and dimming method thereof |
| CN106358007A (en) * | 2015-07-14 | 2017-01-25 | 中兴通讯股份有限公司 | Eye protecting method and eye protecting device for video conference |
| CN106572553A (en) * | 2015-10-13 | 2017-04-19 | 海洋王（东莞）照明科技有限公司 | Drive circuit |
| CN107293161A (en) * | 2017-07-07 | 2017-10-24 | 曾华欣 | A kind of multi-functional Physical Experiment instrument |
| CN109036235A (en) * | 2018-09-10 | 2018-12-18 | 天津大学 | Automatic brightness adjustment projector |
| WO2021208345A1 (en) * | 2020-04-17 | 2021-10-21 | 苏州桐力光电股份有限公司 | Smart classroom |
| CN116600434A (en) * | 2023-07-13 | 2023-08-15 | 永林电子股份有限公司 | LED intelligent management control system for teaching building |
-
2013
- 2013-02-22 CN CN 201320083365 patent/CN203219550U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9143720B2 (en) | 2013-10-31 | 2015-09-22 | Htc Corporation | Handheld electronic device and image projection method of the same |
| TWI503703B (en) * | 2013-10-31 | 2015-10-11 | Htc Corp | Handheld electronic device and image projection method of the same |
| CN104243881A (en) * | 2014-09-08 | 2014-12-24 | 陆俊 | Projection control method and system of projector |
| CN104243881B (en) * | 2014-09-08 | 2017-09-12 | 北京奇正悦扬科技有限公司 | The method for controlling projection and system of a kind of projecting apparatus |
| CN106358007A (en) * | 2015-07-14 | 2017-01-25 | 中兴通讯股份有限公司 | Eye protecting method and eye protecting device for video conference |
| CN105159022A (en) * | 2015-09-24 | 2015-12-16 | 清华大学 | Indoor automatic dimming system matched with action of projector and dimming method thereof |
| CN106572553A (en) * | 2015-10-13 | 2017-04-19 | 海洋王（东莞）照明科技有限公司 | Drive circuit |
| CN107293161A (en) * | 2017-07-07 | 2017-10-24 | 曾华欣 | A kind of multi-functional Physical Experiment instrument |
| CN109036235A (en) * | 2018-09-10 | 2018-12-18 | 天津大学 | Automatic brightness adjustment projector |
| WO2021208345A1 (en) * | 2020-04-17 | 2021-10-21 | 苏州桐力光电股份有限公司 | Smart classroom |
| CN116600434A (en) * | 2023-07-13 | 2023-08-15 | 永林电子股份有限公司 | LED intelligent management control system for teaching building |
| CN116600434B (en) * | 2023-07-13 | 2023-09-19 | 永林电子股份有限公司 | LED intelligent management control system for teaching building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |